Origin
Brazil, Colombia, Southern and central Africa
  
USA
  
Color
Greenish, Blue, Colorless, White, Green
  
Brown, Red, Black, Brownish
  
Streak
White
  
Reddish, Brown, Reddish, Brown
  
For which Rashi?
Not Available
  
Not Available
  
Planet
Not Available
  
Not Available
  
Element of Planets
Not Available
  
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How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
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Energy
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Deities
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Not to wear with
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Powers
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Birthstone
  
  
Planetary
Not Available
  
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Talisman
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Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.08-3.12
  
5.05-5.22
  
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
  
Cleavage
{010} Perfect
  
None
  
Mohs Hardness
7.5
  
5.5-6
  
Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
  
Luster
Vitreous
  
Not Available
  
Pleochroism
Weak: colorless-(greenish) yellow
  
Not Available
  
Dispersion
Not Available
  
Transparency
Gemmological Tables (2004) More from other references
  
Translucent
  
Refractive Index
1.650-1.677
  
Not Available
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
  
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
  
Birefringence
0.019-0.025
  
Not Available
  
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
  
Translucent
  
Physical
  
  
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Euclase Vs Franklinite Fracture
Fracture is an important parameter when you compare Euclase and Franklinite Physical Properties. It is necessary to understand the significance of these properties, before you compare Euclase Vs Franklinite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Euclase is Brittle, ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001), Gemstones of the world (2001) and Metallic. Franklinite fracture is ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven.
Euclase Vs Franklinite Luster
A primary knowledge about Euclase vs Franklinite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Euclase exhibits Vitreous luster.